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Physics

Physics
How much mechanical work must be done to completely melt 1 gram of ice at 0°C ?

4.2 J
336 J
2268 J
80 J

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Physics
The unit of measurement of noise is

Hertz
Amplifier
Decibel
Acoustics

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Physics
An object covers distance which is directly proportional to the square of the time. Its accelaration is

Decreasing
Constant
Increasing
Zero

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Physics
Nuclear Reactors are based on which of the following phenomenon?

Nuclear Fusion
Magnetic confinement of Plasma
None of these
Controlled Nuclear Fission

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Physics
An electric fuse is based on

All of these
The chemical effect of the current
The heating effect of the current
The magnetic effect of the current

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Physics
Hot springs are heated geothermally by underlying

Water
Mitula
Magma
None of these

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